# php -v
PHP 7.4.3 (cli) (built: Aug 17 2022 13:29:56) ( NTS )
That should not be a problem, I hope.
I want to do the update, because I want to bring this machine to Ubuntu 22.04 - which comes with PHP 8. Before I do this, I'm trying to make sure my sites can play along well even with PHP 8. Roundcube is the last contestant.